CVE-2026-105691 Penpot: Authenticated OS Command Injection in Penpot SVG Exporter via Legacy fill-color
An attacker can execute arbitrary OS commands on the server by injecting shell metacharacters into SVG fill-color values during export.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-105691?
CVE-2026-105691 is a critical command injection vulnerability in penpot, published on 5 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Penpot is an open-source design and prototyping platform. Prior to 2.18.0, the SVG exporter places an attacker-controlled text object's fill-color value into a ppmcolormask command string and executes that string through child_process.exec. A user who can edit a file can store shell metacharacters in the fill color and trigger SVG export, causing commands to execute with the exporter service's privileges. The same export can be triggered through a valid public share link to a malicious file. This vulnerability is fixed in 2.18.0.
Weakness: CWE-78
Which versions are affected by CVE-2026-105691?
How do I fix CVE-2026-105691?
No fix has been published for CVE-2026-105691 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-105691 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-105691 exists.
Sources
Also known as GHSA-4f36-m4hj-cv86.